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tester [92]
3 years ago
13

Alma brought pens of green and blue color. 35% of pens are blue. If she brought a total of 70 pens, how many green pens did she

have?
Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer:

24.5% are green

Step-by-step explanation:

You might be interested in
For a field trip, 6 students rode in cars and the rest
Marrrta [24]

Answer:

(326-6) ÷ 8 = s

40 = s

Step-by-step explanation:

326-6=320 This was done so we get to know the total amount of students in busses, since six rode in cars.

Then we divide the amount of students in busses by the amount of busses to get 40. 40 students in each bus.

3 0
3 years ago
robert wants to build a fence in his back yard that is 28 feet by 26 feet. how much fence would he need
il63 [147K]
He would need 728 ft of fence in order to build a fence. 28 x 26 would equal 728.
4 0
3 years ago
Which ordered pair in the form (x, y) is a solution of this equation?
Natasha2012 [34]

(3, 1)

substitute each ordered pair into the left side of the equation and if equal to the right side then it is a solution

(4, 1 )

(4 + 6) × 1 = 10 × 1 = 10 ≠ 9 ← not a solution

(2, 1 )

(2 + 6 ) × 1 = 8 × 1 = 8 ≠ 9 ← not a solution

(3, 1 )

(3 + 6 ) × 1 = 9 × 1 = 9 ← hence a solution

(12, 2 )

(12 + 6 ) × 2 = 18 × 2 = 36 ≠ 9 ← not a solution


5 0
4 years ago
PLEASE HELP ASAP, PUT INTO NORMAL NUMBERS, STANDARD FORM?
Masteriza [31]

Given:

The numbers are written in scientific notation.

To find:

The standard form of given numbers.

Solution:

Formula used:

a^{-n}=\dfrac{1}{a^n}

(a)

7.2\times 10^{-8}=7.2\times \dfrac{1}{10^8}

7.2\times 10^{-8}=\dfrac{7.2}{1000000000}

7.2\times 10^{-8}=0.000000072

(b)

6.3\times 10^{-9}=6.3\times \dfrac{1}{10^9}

6.3\times 10^{-9}=\dfrac{6.3}{10000000000}

6.3\times 10^{-9}=0.0000000063

(c)

4.54\times 10^{-5}=4.54\times \dfrac{1}{10^5}

4.54\times 10^{-5}=\dfrac{4.54}{100000}

4.54\times 10^{-5}=0.0000454

(d)

7.041\times 10^{-10}=7.041\times \dfrac{1}{10^{10}}

7.041\times 10^{-10}=\dfrac{7.041}{100000000000}

7.041\times 10^{-10}=0.0000000007041

Therefore, 7.2\times 10^{-8}=0.000000072, 6.3\times 10^{-9}=0.0000000063, 4.54\times 10^{-5}=0.0000454,

7.041\times 10^{-10}=0.0000000007041.

8 0
3 years ago
Find the solution to the following system of equations using the substitution method: y=-2/3x+5 and 3y+2x=15
Finger [1]

Answer:y18 and y92

Step-by-step explanation:

We can start from that

−

5

at the end, which indicates the

y

-intercept and you may ask how?

If we substitute

0

instead of

x

, then

y

=

2

3

⋅

0

−

5

y

=

−

5

This will give us the first coordinate, which is

(

0

,

−

5

)

.

After that, let's look at the slope, which is

2

3

. As you might know, the slope is also referred to as

rise/run

; what do they mean by that is that the first top number tells you how many units you go up and the second one how many units you go right or how many units you go down and go left.

Now, I know this may seem complicated but let's make it clear. Since we know one coordinate, which is

(

0

,

−

5

)

, from that point by knowing the slope we can find a second point; this point is

2

points above and

3

to the right, which tells us that

−

5

+

2

points above gives us

−

3

and

3

points on the right gives us a new coordinate:

(

3

,

−

3

)

.

And since we now know two coordinates, that is enough to draw the line and have the graph!!!

enter image source here

I hope you found this helpful!!!!

4 0
4 years ago
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